Tips/help with load-bearing beam in the facade for balcony

[soerling]

Hi,

I'm pondering on how to best construct the balcony over the porch (farstukvist) and I'm considering if/how to attach the bearer to the wall when there's a metal sheet there.

See attached image

Is it just a matter of removing parts of the facade and screwing it on, or what do you think?
Alternatively, maybe also insert a small spacer between the bearer and the metal sheet.